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Physicochemical Properties and Fiber-Drawing Ability of Tellurite Glasses in the TeO 2 -ZnO-Y 2 O 3 Ternary System
Glasses in the TeO -ZnO-Y O (TZY) ternary system are examined in the present work. The vitrification domain of the chosen oxide matrix is determined and differential scanning calorimetry as well as X-ray diffraction measurements are carried out. The material characterizations reveal that Y O incorpo...
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Published in: | Materials 2022-02, Vol.15 (3) |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Online Access: | Get full text |
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Summary: | Glasses in the TeO
-ZnO-Y
O
(TZY) ternary system are examined in the present work. The vitrification domain of the chosen oxide matrix is determined and differential scanning calorimetry as well as X-ray diffraction measurements are carried out. The material characterizations reveal that Y
O
incorporation cannot exceed 5 mol.% without causing detrimental crystallization within the glass. Optical transmission and refractive index investigations are conducted on compositions yielding fully amorphous samples. Next, the fiber drawing ability of selected yttrium-containing zinc-tellurite glasses is assessed and fiber-attenuation measurements in the mid-infrared are presented. Finally, a multimode step-index fiber is fabricated by combining a TZY cladding glass with a La
O
-based tellurite core glass. It is believed that yttrium-containing glasses could prove useful in association with other high glass transition temperature (>300 °C) TeO
-based materials for the design of robust optical fibers with precisely engineered refractive index profiles. |
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ISSN: | 1996-1944 1996-1944 |